As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY SMOKE UNCONFIRMEND WARNINGS FIRST MID LAVATORY THEN 5 MINUTES LATER FORWARD LAVATORY. FLIGHT ATTENDANT SEARCH FOUND NOTHING IN BOTH CASES. MAINTENANCE RESET THE CIDS SYSTEM PER AMM 23-73-00. BOTH THE CIDS AND LAVATORY SMOKE SYSTEMS STATUS OK.